If you dream about dust, it means that you are ignoring certain parts of your personality.
If you dream that you are dusting something, it means that you are rethinking your old ideas and getting ready to start afresh. You may have to pay closer attention to something that you have neglected for some time.
If you have a dream about being covered by dust, it means that you feel like you need to catch up in order to refresh your self image. You need to reassert yourself so that you can motivate forwards movement toward your goals after you have been overlooked for some time.
Example: In a woman’s dream, she picked up something gold that was dusty, and began to wipe the dust off. In reality, the woman was caring for her terminally ill ex-husband. She had been thinking about leaving her care of him so she could return to having a life for herself again.